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By three dave after the shot, ail the lagoon water had ‘become lightly
contaminated,fa the onder of one microcurie per liter. Water samples
were taken.ina.testedat frequent intervals and salt water systems
and adjacent‘engineering spaces monitored continually. Evaporators, \

condensers,and fire mains on most ships gradually becane contaminateds _we:

7one time at was feared this might become a major protien, and rewe

quire ships to. evacuate the Lagoon, at least at night. Honever, 10.
' days after the shot the intensities of salt water system contamination
began to drop stonatiy and there was no need for ships to leave the

| "Lagoon, The ‘highest shipboard intensity resulting from intake of -—

contaminated Legonwater was w or/ar, detected on ‘the exterior of
o an“auciliaryeontenser 0
on| CURTISS. The average intensity in ‘the: |
wee leFtAAS oo

~ engineering’‘space ‘where‘this cofilenser was locatedwas only2 mars
im, .

€oe

Drinicing water produced‘from Jagoon water by shipsevaporators showed <

POST

a ‘noactivity.ani was completely sate for use.

os

One aarming report | os ~

of a contaminated drinking water‘sample timed out‘tobe due to con~""
tamination taken into the testing laboratory by‘ite veniilation‘yoten, i
;
_—

; oS st
and. not to contamination present in the sauplesy,

10.

ol. - .

Most Navy Task Grou "personnel present at Bikini for shot .

BRAVO received at leastsome radiation; a considerable number received dosages that were considered heavy by laboratory standards.

Three

may have received substantial dosages by tactical standards, “The
7.
8

CTG 7.3 ltr ser 0560 of 14 March 1954
CTU 7 ltr "Report of Water Samples" dated 10 March 1954

132

7

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